Oiling device for road rollers



Sept. 23 1924.

D. s. MONROE OILING DEVICE FOR ROAD ROLLERS Fiied a 18 1922 2snaps-shew. 1

INVENTCR,

ATTOR N EY Sept. 23.1924. D. S. MONROE OILING DEVICE FOR ROAD ROLLERSFiled Jan. 18, 1922 2 Shoots-Shae! 2 W a J jZJJ/anroe,

INVENTORI WITNESSES Mal/M ATTORNEY Patented Z3, 1924in Nrrn s'rrnsDANIEL MGNROE, O1? PORTLAND, OREGON,

OILING DEVICE FOR ROAD ROLLER-S.

Application filed January 18, 1922.

To (4Z5 whom it may cone-em:

13c it l-cnown that l, Dininn S. hloNRon, a citizen of the United,dtates, residing at Portland. in the county of li lultnomah and Fttateof Uregron, have invented a new and useful improvement in (FilingDevices for Ro d Boilers, of which the following is a specification.

This invention relates to road rollers, and is more particularlydirected to an oiling device for oiling the surfaces of the pressurerollers or" a road roller,

in object of this; invention is the provision of a new and improvedoiling means 1 for spraying oil on the front and rear pres sure rollersby means of an ejector operated by the steam from the engine whichdrives the road roller, and which is controlled by the engineer from hisposition on the road roller. whereloy it is unnecessary for him tosubject himself to possibility of danger by being compelled to workamong the inovparts of. the road roller in. order to ad just the flow ofoil.

The invention will be best understood cm a consider ion of the followingdetailed description taken in connection with the acc-oinpa. 1g drawingforming part of this specification. with the understanding, howeveu thatthe invention is not confined to any strict con orn'iity with theshowing in the drawing, but may be changed and modified so lone: as suchchannes and modifications nu" no material departure from the salientfeatures of the invention as expre 7 d in the appended claims.

in the drawinp3:--

Fig. 1 is a side elevation of road roller disclosing; my oil sprayingdevice in operative relation to the pressure rollers.

Fig. 2 is a plan view of the same with parts removed. disclosing; thespraying device in o 'iera-tive relation to the pressure rollers.

Fig: 3 is a lon ritudinal section of the ejector.

Fig. 4- is a detail view in section of one of the nozzles of thespraviup,- devices,

Generally speaking, the oil spraying de vice comprises a source of oil,an ejector connected with the source of oil, conduits connecting theejector with the steam encine, discharge pipes connecting the ejectorwith spraying; devices associated with the front and rear pressurerollers, and valves Serial No. 530,212.

for controlling the flow of steam and oil through their respectiveconduits.

Referring; more particularly to the drawing, 1 designates a steam enginewith its boiler carried by the front pressure rollers 2, and the rearpressure rollers 3 and 4:. A controlling means 5 for guiding the frontpressure rollers 2 is adapted to direct the movement of the road roller.These elements are old in the art and form 110 part of the presentinvention.

Fiupported in baskets 6 are oil containers or reservoirs 7 and 8,located upon opposite sides of the engine and boiler l. Plugs 9 close anopening in the top of the containers 7 and 8 and provide means by whichoil may be supplied to the containers. The container or reservoir 7 isprovided with a connection 10 for a conduit 11. A check valve 12 ismounted in the conduit 11 and permits oil to flow from the containerthrough said pipe, but wi l prevent the oil or other fluid fromre-entering the reservoir 7. A stop cook 13 is likewise mounted in thepipe 1]. and is provided with a handle let for operating the valve. Anoperating rod. 15 extending; rearwardly of the road roller is mountednear its outer end in a bracket 16 and provided with handles 17 adaptedto be gripped by the engineer, whereby the stop cock 13 may be operatedfrom the seat of the engineer.

A vertical pipe 18 is connected at its lower end to the pipe 11 and atits upper end to an ejector 19.

The ejector 19 as shown in 3 comprises a steam nozzle 20 seated in oneend of the casino: 2i of the ejector, and is held in place by means of anipple 22, engaged by the annular flange of a union 28, havingscrew-threaded engagement with the externally threaded outer end of thecasing 21. lln the other end of the casing); 21 is screw threaded anejector tube 2e provided With external tl'ireads engaging the internalthreads in the forward end of the casing 21. llhe ejector tube 24-. isof a larger diameter than the steam nozzle 20, but of smaller diameterthan the pipe 18.

The nipple 22 is externally threaded and screwed into the internallythreaded end of a steamy conduit which extends rearwardlv of the roadroller, and is connected to the steam chest of the engine at 26, Fig. 2.A globe valve 27 is located in the steam 28 is provided roller andparalle=.

' the oil from pipe for controlling the flow of steam from the engine tohe ejector 19, A. handle for ogmrating the valve 27.

Connected to the forward end of the casing 21 of the ejector a shortpipe 29 3) which is connected by an elbow 30 to a vertical dischargepipe 31. The vertical discharge pipe is provided with a check valve 32(Fig. 1) r This valve is only useful when it sired to supply the sprayerwith water. i in pipe 31 is connected by a T-coupling 34- to the forwardand rearward discharge pipes 35 and 36, respectively. The dischai pipe35 extends downwardly and is connected to a horizontal discharge pipe 39(Fig. A support 38 secured to the boiler l and to the T-couplinp; 34maintains the discharge pipes 35 and 86 in position. The discharge pipe39 is p'rovided with a check valve 40 which permits fluid. to passforwardly and out of the pipe 39 to the T-connection ll, but preventsfluid from returning' to said pipe. A flexible tubing 42 provides aconnection between the T-connection ll and the trout spraying device 43,which is adapted to spray oil onto the front pressure rollers 2.

The rearwardly-extending discharge pipe 36 is provided with a valveoperated a handle to cut oil communication be tween the ejector l9device l6, associated roller 3.

The handle 45 may be connected by means of an operating rod similar tothe rod 15 and directed rearwardly to a pointnear the seat of theengineer, whereby the valve 44 may be controlled remotely from itsposition on the pipe 46. This obviates the necessity of the engineerworking among the moving parts of the road roller when he dd sires toregulate the oiling device.

As shown in Fig. 2, the parts scribed comprising the ejector, the voirand the several discharge conduits leading to the front. and rear of theroad roller,.are duplicated on the other side or" the road roller.

An ejector 45? similar to the ejector 19. connects d to the steam engineby means ot a conduit 48 running rear-war of the road to the steamconduit the flow of steam being controlled by a valve 49 operated by ahandle 50. p

A stop Cock 51 which controls the How of": the reservoir 8 to theejector 47, is provided with a lever 52 connected to an. ope at-lug rodrunning re iwrardly. The rod 58 has a handle 17 similarly loand the rearspraying;

with the rear pressure u st (lo-- oil resenc-ate-d near the seat of theengineer as is the handle 17 for the rod 15. The eject r l? is connectedby a rearwardly-extendinn discharge pipe 54 to a spraying device 55associated with the rear pressure roller A forwardly and downwardlyextending; discharge pipe 5? to permit oil to low to the llc :iblotubing 19. hut prevent oil from the discharge pipe 3.) from flowing;luu-ltvrurdlv into the pipe 57.

checl: valve 5!) similar to the chm-l: valve 12 is employed in theliscluu'g'o (ouduit leading: directly from the oil revcrvoir 8 toprevent luid from entering): the reservoir when steam under an excess veamount of pressure tends to a t rcamvardlv in the discharge conduitslocated between the l'(. (l' voir 8 and the ejector 4?.

A manually controlled valve (30 similar to valve- -l:-fl is located inthe discharge conduit 54. and operated by a lover (l l for cuttiupj ollcomnmnication between the roar spra 'imr device 55 associated with herczu pressure roller 4 and the ejector l7.

Each of the suuill perforations lo'ulcd iu the Sl)l& 'il1]1 devices 4cand 55 is pro vided with a nipple (52. upon which is mounted a shortlength of rubber tubing (l3 oi? substantially the same diameter as thenipple 62 but longer than said nipple. The portion of the tubing whichextends hcyoiul the nipple provides a means For directing the oil fromthe several spraying devices onto the respective pressure rollers. Furthermore, it may be stated thu by this construction oil is forceddirectly from the spraying: devices onto the wheels; oi the pres-- surerollers. d the oil is thus protected from strongwinds which would [cudto blow the oil away 'l'roui the rollers (Fi i. 4-).

.ln otwrat o i. the tanks i and al'c lillv-d with oil for luhricatiuc'the rims o l' the pres sure rolle s 2?. I) and 4 to pr v u. the hot.dressing oi" the roalbcd from adhcriu -i to rid rims As long; as thepressure lnllr'l's are traveling over the surta. r of the troshlvtreated roadbcd. it is ucccssai v that said rollers be constantlysprayed with oil. Since the sprayingdevices 41 lt' and 57 are inconstrnt operation. a considerable :uuouut of oil must be su 'u'ilied tothem. and there-- fore tanlt having? a capacity ot at least six gallonseach is desirable. The clinch valve-e l2 and 5.) pcru'iit oil to tlowlhrou rh the containers 7 and 8. respectively. but prevent any liquidfrom returning to said reservoirs or containers.

Rods 15 and 5 -3. respectively. operate the respective stop cocks l3 and:il. whereby the amount of oil flowing from the reservoirs T and 8 isregulated and since those rods ex tend to the rear ol' the power plantand near ill! llfl

the engineers seat, they may be controlled from that position without itbeing necesthe rear pressure roller 3, when the valve 27 has been openedto admit steam from the boiler 1 to the pipe 25.

When the stop cook 51 is opened, oil will he admitted to theejector 457,and then forced through the discharge pipes 5 1 and 56 by men: of steamfrom the pipe 48 when the val e a9 is opened to admit steam trom theboiler 1 to the pipe 48. Oil is thus iorced along the dischargepipes 5and 56, respectively, to the rear spraying device 55 associated with thepressure roller 4: and to the forward spraying device 43 associated withthe trout pressure rollers It will be seen that oil is lied to the troutspraying device 4:3 by both ejectors 19 and t7, while the respectiveejector-s 19 and 4t? supply independently the rear spraying devices 4-6and 55.

It will be unnecessary always to supply one of the two pressure rollers3 and 4; with oil, since it frequently happens that onlyv one of thesepressure rollers. is in operat ve position tor rolling the newlytreated. roadhed. Therefore, valve in. may he. closed to out outconnnunication between the ejector 19 and the spraying device 46, whenthe operating handle of the valve 44 is manipulated. Valve 60 may beoperated to cut oft communication hetween the ejector 4-7 and thespraying device associated with the rear iiressure roller 4.

it will he seen that by closing; the valves 44; and (it), either one ofthe spraying de vices or may he cut ot'i troni the supply of oil, but atno time will the front spraying device 43 he cut oil from the ejector-s19 and 4-7, since the front pressure rollers 2 will. always he employedin rolling the roadhed when the road roller is in operation. 7

The check valves 40 and 58 are supplied to the discharge conduits 39 and57, respectively, to prevent oil discharged by either ejector 19 or a7.from passing from one side of the road roller to theother, and enteringeither one of the discharge pipes, when either valve 44 or cuts o'l'lcommunication between the respective spraying devices 46 and as forexample. when the rear spraying device 46 is cut out oi communicationwith. the ejertor 19. greater pressure will he exerted upon the oildelivered to the discharge conduit 39 and to the front spraying device43. In this case,

there will he a tendency to force .oil not only into the spraying device13, but also into the discharge conduit and towards the ejector t7, andalong the discharge conduit 54 to the rear spraying device 55,associated with the rear pressure roller 4. in this case there would hea tendency to supply more oil to the rear spraying devh e 55 than isnecessary, hut the check valve which permits oil to tlow from thedischarge conduit 5? to the front spraying device 43, will prevent oilfrom the dischar conduit 39 from entering the discha conduit 57.

The same conditions will rise for supplying a greater quantity of oil tothe sprayer 16 when the rear spraying device 55 is cut oil "fromcomn'iunication with the ejector 4L7, and when the rear spraying do viced6 is in communication with. the injector 19. The check valve 4:0 willprevented in the discharge conduit 5" trom entering the discl'iargoconduit 39 and the discharge conduit 36 to the other rear sprayingdevice 46' associated with the pressure roller 3.

The tiexihle pipe 42 is used to connect the T-connection 41 with thefrontspraying device 43, and as such permits the front pressure rollers2 to he turned on their axes when the pressure rollers are operated toguide the road rollers by the controlling means 5. i 1

l l hilc lhave shown the oiling device applied to a three wheel roadroller, nevertheless it may be equally well aplied to the smaller ortandem rollers which are used in the city. In such case, but one oilreservoir and one ejector will be employed, in cooperation with a singlesprayingdevice for each pressure roller similar to the front sprayingdevice 4:? shown in 2. This construction has not been disclosed since itis thought unnecessary to illustrate the numerous "forms to which thespraying device may he applied. l lo new problem. is involved inapplying the oil spraying system to the different torms of road rollers.sin e the principle employed for spraying the pressure rollers and themanner of controlling the spray will he the same.

What is claimed is: i

1. In a road roller provided with a steam generator, an oiling devicefor the pressure roller, comprising an oil reservoir, an ector, pipesconnecting the ejector with the steam generator and the oil reservoir, adischarge conduit connected to the ejector, spraying means cormected tothe discharge conduit andv leading to the sutace of a roller, and meansfor controlling the flow'o't steam to the ejector and therebycontrolling the discharge of the oil from the spraying means.

2. In a. road roller provided with a steam generator, an oiling devicefor the pressure roller comprising an oil reservoir, an ejector,separate pipes connecting the ejector with the steam generator and withthe oil reser voir, a discharge conduit cormccted to they ejector,spraying means adjacent to the pressure roller and connected to the discharge conduit, a valve for con rolling the flow of steam to the ejectorand thereby controlling the discharge of the oil from the sprayingmeans,a. separate valve for controlling the flow of oil from thereservoir to the ejector, and a check valve between the last mentionedvalve and the oil, reservoir to prevent steam from entering the oilreservoir.

3. In a road roller provided with a steam generator and front and rearpressure rollers, an oiling device for the pressure rollers comprisingan oil reservoir, an ejector, a pipe directly connecting the ejectorwith the steam generator and a pipe directly connecting the ejector withthe oil reservoir, discharge conduits directly connected to the ejectorand extending forwardly and re? fwardly, spraying means adjacent thepres surerollers and connected to the discharge conduits, meanscontrolling the flow of steam to the ejector, and means for cutting offcommunication between the ejector and the spraying device associatedwith the rear pressure roller.

4. In a. road roller provided with a steam generator, front pressurerollers and rear pressure rollers, an oiling device for the pressurerollers comprising a plurality of ejectors, each ejector havingcommunication 7 with :the steam generator and with a source of oil,discharge conduits connected to the ejectors, spraying devicesassociated with each pressure roller and having communication with thedischarge conduits and ejec torscooperating with each other to supplyoil simultaneously to the spraying device associated with the frontpressure roller, means for cutting off communication between one ejectorand the spraying device associated with one of the rear pressurerollers, and means to prevent steam from 1 either ejector from forcingoil into the spraying means associated with the other rear pressureroller. V

5. In a road roller provided with a steam generator and front pressurerollers and rear pressure rollers, an oiling device for all thepressurefrollers comprising a pinrality of oil reservoirs, a pluralityof ejector-s each having separate communication with an oil reservoirand with the steam generator, means to control the flow of steam to eachejector, oil spraying means associated with each pressure roller, adischarge conduit connected with each ejector and having com-,munication with a common discharge pipe connected to thespraying meansassociated with the front rollers, each of the discharge conduits beingconnected with a spraying means associated with each rear roller, andans for cutting off con'nnunication between said discharge conduits andeither one of the spraying devices associated with a rear iu'essureroller, whereby the ejectors simultaneously supply oil to the frontrollers and each ejector supplies oil to one rear roller.

In a road roller provided with a steam generator and a front rollerhaving steering ncans, an oiling device for said roller co1nprising anoil reservoir, an ejector, a pipe for directly connecting the ejectorwith the steam generator, means for controlling the flow of steamthrough said pipe, apipe directly connecting the ejector with the oilreservoir, means for controlling the flow of oil through thelast-mentioned pipe, a discharge conduit directly connected to theejector, transversely arranged spraying means for the front roller, atransversely disposed discharge pipe connected to the discharge conduit,and a flexible tube connecting the discharge pipe with the sprayingmeans intcrmediatcly of the length thereof, whereby the front roller maybe turned at any angle without affecting the pipes.

7. In a road roller provided with a steam generator, front roller havingsteering means, and a rear roller or rollers, an oiling device for allof said rollers comprising a pair of oil reservoirs and a pair ofejectors, oneof each at each side, a pipe for directly connecting eachejector to the steam gen orator, means for controlling the flow of steanthrough said pipes, a pipe directly connecting each ejector with an oilreservoir, means for controlling the flow of oil through thelast-mentioned pipes, a separate discharge conduit dircctly connected toeach ejector, a transverscly-arranged spraying means for the frontroller, a transversely arranged discharge pipe connected at its endstothe two discharge conduits, a flexible tubular connection between thedischarge pipe and the said spraying means, whereby the front roller maybe steered at any angle without affecting the said pipes, a pair of.check valves in said discharge pipe, one at each side of the saidtubular connection, a separate spraying means for said rear roller orrollers, a pipe or pipes leading reamvardly from said discharge conduitto said separate spraying means, and means for controlling communicationthrough said pipe or pipes, whereby the front roller is continuouslysprayed with oil and the spraying in 311115 for the rear roller orrollers may be cut off at will.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature.

DANIEL SHAW MONROE.

bill

lit)

